Juan and melissa were planning to grow some plants for a science experiment. they started with seeds, 100 seeds each. juan planted his seeds in sandy soil. melissa planted her seeds in soil that had more clay and less sand. they tracked the seed sprouting, also called germination, in both plots. juan concluded that seeds germinated best in clay soil, not sandy soil.

The 2 students watered their plants differently

increase soil erosion                                             reduce soil erosion

cattle grazing                                                         hydroseeding

deforestation                                                         contour plowing

                                                                                planting vegetation

plant roots basically hold the top soil

together and stop soil erosion because

in such situation top soil is not removed

during flood but cattle grazing causes

soil erosion because cattle consume the

grasses and herbs and top soil is exposed.

same situation occurs because of

deforestation, the trees and plants are cut

down to expose top soil which causes soil

erosion